Solar System Unit Test
4 total lessons
1 66°F
Use the scenario to answer the question.
A student makes a chart about galaxies and mentions that the universe consists of many galaxies such as the Andromeda galaxy and the Milky Way galaxy.
Which statement is true about these two galaxies?
(1 point)
• The Milky Way galaxy is larger than the Andromeda galaxy.
• They are both moving away from each other.
• They both exert a strong gravitational pull on each other.
• The Milky Way is a spiral galaxy, and the Andromeda galaxy is not.
• The Milky Way is a spiral galaxy, and the Andromeda galaxy is not.
To answer this question, you can use your knowledge of galaxies or conduct research to find the answer. Here's a breakdown of how to determine the correct statement.
1. The Milky Way galaxy is larger than the Andromeda galaxy:
You can compare the sizes of the Milky Way and Andromeda galaxies. One way to do this is by looking up their respective sizes in terms of diameter. By researching, you can find that the Andromeda galaxy is actually slightly larger than the Milky Way galaxy, so this statement is false.
2. They are both moving away from each other:
To determine if they are moving away from each other, you can research their relative motion. By looking up scientific observations, you will find that the Andromeda galaxy is actually moving towards the Milky Way galaxy, and they are expected to collide in the future. Therefore, this statement is false.
3. They both exert a strong gravitational pull on each other:
To find out if they exert a strong gravitational pull on each other, you can research the gravitational interactions between the two galaxies. Scientific studies and observations have revealed that the Milky Way and Andromeda galaxies are indeed gravitationally bound, exerting a pull on each other. Therefore, this statement is true.
4. The Milky Way is a spiral galaxy, and the Andromeda galaxy is not:
To determine the types of galaxies, you can research their classifications. By looking up information, you will discover that both the Milky Way and Andromeda galaxies are classified as spiral galaxies. Therefore, this statement is false.
Based on the research, the statement that is true about these two galaxies is that they both exert a strong gravitational pull on each other.
The statement that is true about these two galaxies is:
• The Milky Way is a spiral galaxy, and the Andromeda galaxy is not.